• Updates embedded data to IANA tzdata 2018.9
• 64-bit transitions are now used in determining UTC offsets
• Support for user-defined format specifiers in timelib date parsing (Nick Zolnierz, MongoDB)
• Account for v representing milliseconds introduced by RFC3339_EXTENDED (Mariano Iglesias)
• Removed use of setlocale, which made the code not thread safe
• Fixed off by one error in do_range_limit_fraction()
• Fixed incorrect snprintf invocation with static buffer
• Fixed normalisation of fractions
• Fixed timelib_diff(), which did not swap direction when sses are the same, but fractions were not
• Fixed C4477 warnings in timelib_dump_tzinfo() when compiling with MSVC (Henrik Eden, MongoDB)